Quoin for locking type



April 3,1934. J. G. ZIM 1,953,668

QUOIN FOR LOCKING TYPE Original Filed March 16 1931 Z HIMHIH J3 3] J3, fizverz Or.-

37 M/CLM, M4 54% flilorrz e ys.

Patented Apr. 3, 1934 UNETE STTS QUOXN FOR LOCKING TYPE Jesse G. Zim, ll/iedford,

Mass, assignor, by direct and mesne assignments, of forty per cent to Martin J. Caulfield and twenty per cent to Thomas A. McDonough, both of Mediord, Mass.

Application March 16,

1931, Serial No. 523,024

Renewed September 8, 1933 Claims.

This invention relates to quoins of the character having at least one bar which is movable laterally to clamp type in a desired position in a chase or similar type-holding device. l-Ieretofore, con- 5 siderable trouble has been experienced due to an occasional slight lateral displacement of the clamping bar, particularly when the quoin was subjected to shock, resulting in displacement of the type and, consequently, defective printing.

It is the object of the present invention to overcome this difficulty and provide a quoin construction in which the clamping bar is effectively supported at a plurality of points throughout its length when in its clamping position and which is effectively locked in such position so that it cannot be displaced by any shock to which quoins are apt to be subjected.

Before explaining in detail the present invention, it is to be understood that the invention is not limited in its application to the details of construction and arrangement of parts illustrated in the accompanying drawing, since the invention is capable of other embodiments and of being practised or carried out in various ways. Also it is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation, and it is not intended to limit the invention beyond the terms of the several claims hereto appended as considered in view of the prior art and the requirements thereof.

The invention will be more clearly understood from the following description in conjunction with the accompanying drawing: in which,

Fig. 1 is a plan view of a chase showing type locked therein by quoins embodying the invention;

Fig. 2 is a perspective of a quoin embodying the invention;

Figs. 3 and 4 are horizontal sectional views showing the parts of the quoin in different positions.

Fig. 5 is a sectional elevational view of the quoin; and

Fig. 6 is a horizontal sectional View of a modified construction of quoin embodying the invention.

The quoin illustrated in the accompanying drawing comprises a pair of similarly shapedbars 10 positioned with their outer vertical longitudi" nal faces 11 parallel. The inner adjacent longitudinal faces 12 are inclined from the ends of the bar toward their outer faces 11. A pair of spaced fingers 13 extend laterally from each of the faces 12 and are so positioned that the fingers 13 on one of the bars extend below and are spaced from the fingers 13 of the other bar. A cam shaft 15 is rotatably mounted between the fingers 13 and its ends terminate between the top and bottom faces of the bars 10. 15 is provided with a head 14 adapted to receive a socket wrench when it is desired to rotate the cam 16. A cam 16 is positioned on the shaft 15 below one pair of fingers 13 and above the other pair and is arranged to engage the faces 12 and spread the bars.

Spaced expansion members 17 are positioned between the bars 10. In the construction illustrated, the members 17 are in the form of wedges having opposite inclined surfaces 18 adapted to engage correspondingly inclined portions of the faces 12 of the bars 10. The members 17 are adapted to be moved in a direction lengthwise of the bars 10 and for this purpose each is provided with a pin 19 extending laterally therefrom into guide slots 20 formed in the bars 10. A separate arm 21 is pivotally connected at one end with each of the members 17. The other ends of the arms 21 are pivotally mounted on the cam V The adja- 16 at diametrically opposite points. cent ends of the bars 10 are connected by a spring 23 engaging hooks 22 thereon.

Type 25 is positioned in the usual manner between the frame members of a chase 26. The spaces between the edges of the type and the frame of the chase are built up by blocks of wood 27 or the like. The quoin is then positioned in the spaces between the blocks 27 and the frame of the chase and the cam shaft 15 is turned to cause the cam 16 to engage the opposed surfaces 12 and spread the bars 10 to clamp them securely between the blocks 27 and the frame of the chase. At the same time, the arms 21 cause the expansion members 1'? to move outwardly along the surfaces 12 and further assist in spreading and clamping the bars 10 between the blocks 27 and the frame of the chase. It will be noted that the bars 10 are locked in their spaced clamping relation by each of the expansion members 1'7 as well as by the cam 16.

In the modified form illustrated in Fig. 6, the shaft 15' is rotatably mounted between the spaced fingers 13 and is provided with a sprocket 30 adapted to engage a rack 31 formed upon an arm 32 extending from each of the expansion members 17.

What I claim is:

1. A quoin for locking type in a chase or the One end of the shaft like comprising a pair of bars disposed with their corresponding outer faces parallel, each of said bars having a corresponding longitudinally extending inclined inner surface, longitudinally spaced members between said bars having inclined surfaces movable a limited amount along the inclined surfaces of said bars, a transversely extending rotatable member positioned between said members and bars, and operative connections between said rotatable member and said first members whereby less than one complete revolution of said rotatable member causes a substantially maximum travel of said first members in opposite directions.

2. A quoin for locking type in a chase or the like comprising a pair of bars disposed with their corresponding outer faces parallel, each of said bars having a corresponding longitudinally extending inclined inner surface, longitudinally spaced members between said bars having inclined surfaces movable a limited amount along the inclined surfaces of said bars, a transversely extending rotatable member positioned between said members and bars, operative connections between said rotatable member and said first members whereby less than one complete revolution of said rotatable member causes a substantially maximum travel of said first members in opposite directions, and means for guiding the longitudinal movement of said first members.

3. A quoin for locking type in a chase or the like comprising a pair of bars disposed with their corresponding outer faces parallel, each of said bars having a corresponding longitudinally extending inclined inner surface, longitudinally spaced members between said bars having inclined surfaces movable a limited amount along the inclined surfaces of said bars, a transversely extending rotatable member positioned between said members and bars, and a separate arm connected with each of said first members and extending in the direction of the other member, said arms operatively engaging substantially diametrically opposite portions of said rotatable member whereby less than one revolution of said rotatable member causes a substantially maximum travel of said first members in opposite directions.

4. A quoin for locking type in a chase or the like comprising a pair of bars disposed with their corresponding outer faces parallel, each of said bars having a corresponding longitudinally extending inclined inner surface, longitudinally spaced members between said bars having inclined surfaces movable a limited amount along the inclined surfaces of said bars, a transversely extending rotatable member positioned between said members and bars and a separate arm pivotally connected to each of said first members and extending in the direction of the other arm, said arms being pivotally connected to substantially diametrically opposite portions of said rotatable member whereby less than one com plete revolution of said rotatable member causes a substantially maximum travel of said first members in opposite directions.

5. A quoin for locking type in a chase or the like comprising a pair of bars disposed with their corresponding outer faces parallel, each of said bars having a corresponding longitudinally extending inclined inner surface, longitudinally spaced members between said bars having inclined surfaces movable a limited amount along the inclined surfaces of said bars, a transversely extending rotatable member positioned between said members and bars, a pinion carried by said rotatable member, and a separate arm connected with each of said first members and extending in the direction of the other member, said arms being provided with teeth adapted to engage substantially diametrically opposite portions of said pinion whereby less than one revolution of said rotatable member causes a substantially maximum travel of said first members in opposite directions.

JESSE G. ZIM. 

